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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="left.html" title="cpp/io/manip/left"><span class="t-lines"><span>internal</span><span>left</span><span>right</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">其他格式化</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="showpos.html" title="cpp/io/manip/showpos"><span class="t-lines"><span>showpos</span><span>noshowpos</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="uppercase.html" title="cpp/io/manip/uppercase"><span class="t-lines"><span>uppercase</span><span>nouppercase</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">空白符处理</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ws.html" title="cpp/io/manip/ws"><span class="t-lines"><span>ws</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ends.html" title="cpp/io/manip/ends"><span class="t-lines"><span>ends</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="skipws.html" title="cpp/io/manip/skipws"><span class="t-lines"><span>skipws</span><span>noskipws</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">输出冲入</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="flush.html" title="cpp/io/manip/flush"><span class="t-lines"><span>flush</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="endl.html" title="cpp/io/manip/endl"><span class="t-lines"><span>endl</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="flush_emit.html" title="cpp/io/manip/flush emit"><span class="t-lines"><span>flush_emit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="unitbuf.html" title="cpp/io/manip/unitbuf"><span class="t-lines"><span>unitbuf</span><span>nounitbuf</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="emit_on_flush.html" title="cpp/io/manip/emit on flush"><span class="t-lines"><span>emit_on_flush</span><span>no_emit_on_flush</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">状态标志操纵</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="resetiosflags.html" title="cpp/io/manip/resetiosflags"><span class="t-lines"><span>resetiosflags</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="setiosflags.html" title="cpp/io/manip/setiosflags"><span class="t-lines"><span>setiosflags</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">时间与金钱 I/O</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="get_money.html" title="cpp/io/manip/get money"><span class="t-lines"><span>get_money</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>get_time</span></span></strong></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="put_money.html" title="cpp/io/manip/put money"><span class="t-lines"><span>put_money</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="put_time.html" title="cpp/io/manip/put time"><span class="t-lines"><span>put_time</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">带引号操纵符</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="quoted.html" title="cpp/io/manip/quoted"><span class="t-lines"><span>quoted</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>定义于头文件 <code><a href="../../header/iomanip.html" title="cpp/header/iomanip">&lt;iomanip&gt;</a></code>
 </div></td>
<td></td>
<td></td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> CharT <span class="sy1">&gt;</span><br>
<span class="coMULTI">/*unspecified*/</span> get_time<span class="br0">(</span> <a href="../../chrono/c/tm.html"><span class="kw1023">std::<span class="me2">tm</span></span></a><span class="sy2">*</span> tmb, <span class="kw4">const</span> CharT<span class="sy2">*</span> fmt <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>用于表达式 <span class="t-c"><span class="mw-geshi cpp source-cpp">in <span class="sy1">&gt;&gt;</span> get_time<span class="br0">(</span>tmb, fmt<span class="br0">)</span></span></span> 时，按照格式字符串 <code>fmt</code> 及输入流 <code>in</code> 中当前感染的 locale 的 <span class="t-lc"><a href="../../locale/time_get.html" title="cpp/locale/time get">std::time_get</a></span> 平面，分析字符输入为日期/时间值。存储结果值于 <code>tmb</code> 所指向的 <span class="t-lc"><a href="../../chrono/c/tm.html" title="cpp/chrono/c/tm">std::tm</a></span> 对象中。
</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  tmb
</td>
<td> -
</td>
<td> 指向 std::tm 对象的合法指针，结果将存储于其处
</td></tr>
<tr class="t-par">
<td>  fmt
</td>
<td> -
</td>
<td> 指向指定转换格式的空终止 CharT 字符串的指针
<p>格式字符串由零或更多转换指定符、空白符和通常字符（除了 <code>%</code> ）组成。期待每个通常字符以大小无关比较匹配输入流中的一个字符。每个空白符匹配输入字符串中的任意空白符。每个转换指定始于 <code>%</code> 字符，可选地后随 <code>E</code> 或 <code>O</code> 修饰符（若本地环境不支持则忽略），后随确定指定符转换行为的字符。格式指定符匹配 POSIX 函数 <a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html">strptime()</a> ：
</p>
<table class="wikitable" style="font-size:85%; max-width:90em;">

<tr>
<th> 转﻿换指﻿定﻿符
</th>
<th> 解释
</th>
<th> 写入域
</th></tr>
<tr>
<th> <code>%</code>
</th>
<td> 匹配字面 <code>%</code> 。完整转换指定必须是 <code>%%</code> 。
</td>
<td> （无）
</td></tr>
<tr>
<th> <code>t</code>
</th>
<td> 匹配任何空白符。
</td>
<td> （无）
</td></tr>
<tr>
<th> <code>n</code>
</th>
<td> 匹配任何空白符。
</td>
<td> （无）
</td></tr>
<tr>
<th colspan="3"> 年
</th></tr>
<tr>
<th> <code>Y</code>
</th>
<td> 分析完整<b>年</b>为四位十进制数，容许但不要求前导零
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>EY</code>
</th>
<td> 以替用表示分析<b>年</b>，例如 平成23年 在 ja_JP 本地环境中写 2011 到 tm_year
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>y</code>
</th>
<td> 分析<b>年</b>的后二位为十进制数。范围 <code>[69,99]</code> 生成 1969 至 1999 的值，范围 <code>[00,68]</code> 生成 2000-2068
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>Oy</code>
</th>
<td> 以替用数值系统分析<b>年</b>的后二位数字，例如 十一 在 ja_JP 本地环境中被分析为 11
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>Ey</code>
</th>
<td> 分析<b>年</b>为从本地环境的替用日历周期 <code>%EC</code> 的偏移
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>C</code>
</th>
<td> 分析<b>年</b>的首 2 位数字为十进制数（范围 <code>[00,99]</code> ）
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>EC</code>
</th>
<td> 分析本地环境的替用表示中，年基底（周期）的名称，例如 ja_JP 中的 平成
</td>
<td> <code><b>tm_year</b></code>
</td></tr>
<tr>
<th colspan="3"> 月
</th></tr>
<tr>
<th> <code>b</code>
</th>
<td> 分析月份名，完整或缩写，例如 <code>Oct</code>
</td>
<td> <code><b>tm_mon</b></code>
</td></tr>
<tr>
<th> <code>h</code>
</th>
<td> <code>b</code> 的同义词
</td>
<td> <code><b>tm_mon</b></code>
</td></tr>
<tr>
<th> <code>B</code>
</th>
<td> <code>b</code> 的同义词
</td>
<td> <code><b>tm_mon</b></code>
</td></tr>
<tr>
<th> <code>m</code>
</th>
<td> 分析<b>月</b>为十进制数（范围 <code>[01,12]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_mon</b></code>
</td></tr>
<tr>
<th> <code>Om</code>
</th>
<td> 用替代数值系统分析<b>月</b>，例如 ja_JP 本地环境中 十二 分析为 12
</td>
<td> <code><b>tm_mon</b></code>
</td></tr>
<tr>
<th colspan="3"> 星期
</th></tr>
<tr>
<th> <code>U</code>
</th>
<td> 分析<b>年之星期</b>为十进制数（星期日是星期的首日）（范围 <code>[00,53]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_year</b></code>, <code><b>tm_wday</b></code>, <code><b>tm_yday</b></code>
</td></tr>
<tr>
<th> <code>OU</code>
</th>
<td> 用替用数值系统，如以 <code>%U</code> 一般分析<b>年之星期</b>，例如 ja_JP 本地环境中 五十二 分析为 52
</td>
<td> <code><b>tm_year</b></code>, <code><b>tm_wday</b></code>, <code><b>tm_yday</b></code>
</td></tr>
<tr>
<th> <code>W</code>
</th>
<td> 分析<b>年之星期</b>为十进制数（星期一是星期的首日）（范围 <code>[00,53]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_year</b></code>, <code><b>tm_wday</b></code>, <code><b>tm_yday</b></code>
</td></tr>
<tr>
<th> <code>OW</code>
</th>
<td> 用替用数值系统，如以 <code>%W</code> 一般分析<b>年之星期</b>，例如 ja_JP 本地环境中 五十二 分析为 52
</td>
<td> <code><b>tm_year</b></code>, <code><b>tm_wday</b></code>, <code><b>tm_yday</b></code>
</td></tr>
<tr>
<th colspan="3"> 年/月之日
</th></tr>
<tr>
<th> <code>j</code>
</th>
<td> 分析<b>年之日</b>为十进制数（范围 <code>[001,366]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_yday</b></code>
</td></tr>
<tr>
<th> <code>d</code>
</th>
<td> 分析<b>月之日</b>为十进制数（范围 <code>[01,31]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_mday</b></code>
</td></tr>
<tr>
<th> <code>Od</code>
</th>
<td> 用替用数值系统分析<b>月之日</b>，例如 ja_JP 本地环境中 二十七 分析为 27 ，容许但不要求前导零
</td>
<td> <code><b>tm_mday</b></code>
</td></tr>
<tr>
<th> <code>e</code>
</th>
<td> <code>d</code> 的同义词
</td>
<td> <code><b>tm_mday</b></code>
</td></tr>
<tr>
<th> <code>Oe</code>
</th>
<td> <code>Od</code> 的同义词
</td>
<td> <code><b>tm_mday</b></code>
</td></tr>
<tr>
<th colspan="3"> 星期之日
</th></tr>
<tr>
<th> <code>a</code>
</th>
<td> 分析星期的日名，完整或缩写版，例如 <code>Fri</code>
</td>
<td> <code><b>tm_wday</b></code>
</td></tr>
<tr>
<th> <code>A</code>
</th>
<td> <code>a</code> 的同义词
</td>
<td> <code><b>tm_wday</b></code>
</td></tr>
<tr>
<th> <code>w</code>
</th>
<td> 分析<b>星期之日</b>为十进制数，其中星期日为 <code>0</code> （范围 <code>[0-6]</code> ）
</td>
<td> <code><b>tm_wday</b></code>
</td></tr>
<tr>
<th> <code>Ow</code>
</th>
<td> 用替用数值系统分析<b>星期之日</b>为十进制数，其中星期日为 <code>0</code> ，例如 ja_JP 本地环境中 二 分析为 2
</td>
<td> <code><b>tm_wday</b></code>
</td></tr>
<tr>
<th colspan="3"> 时、分、秒
</th></tr>
<tr>
<th> <code>H</code>
</th>
<td> 分析<b>时</b>为十进制数，以 24 小时时钟（范围 <code>[00,23]</code> ） ，容许但不要求前导零
</td>
<td> <code><b>tm_hour</b></code>
</td></tr>
<tr>
<th> <code>OH</code>
</th>
<td> 用替用数值系统分析来自 24 小时时钟的<b>时</b>，例如 ja_JP 本地环境中 十八 分析为 18
</td>
<td> <code><b>tm_hour</b></code>
</td></tr>
<tr>
<th> <code>I</code>
</th>
<td> 分析<b>时</b>为十进制数，以 12 小时时钟（范围 <code>[01,12]</code> ） ，容许但不要求前导零
</td>
<td> <code><b>tm_hour</b></code>
</td></tr>
<tr>
<th> <code>OI</code>
</th>
<td> 用替用数值系统分析<b>时</b>，例如 ja_JP 本地环境中 六 分析为 6
</td>
<td> <code><b>tm_hour</b></code>
</td></tr>
<tr>
<th> <code>M</code>
</th>
<td> 分析<b>分</b>为十进制数（范围 <code>[00,59]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_min</b></code>
</td></tr>
<tr>
<th> <code>OM</code>
</th>
<td> 用替用数值系统分析<b>分</b>，例如 ja_JP 本地环境中 二十五 分析为 25
</td>
<td> <code><b>tm_min</b></code>
</td></tr>
<tr>
<th> <code>S</code>
</th>
<td> 分析<b>秒</b>为十进制数（范围 <code>[00,60]</code> ），容许但不要求前导零
</td>
<td> <code><b>tm_sec</b></code>
</td></tr>
<tr>
<th> <code>OS</code>
</th>
<td> 用替用数值系统分析<b>秒</b>，例如 ja_JP 本地环境中 二十四 分析为 24
</td>
<td> <code><b>tm_sec</b></code>
</td></tr>
<tr>
<th colspan="3"> 其他
</th></tr>
<tr>
<th> <code>c</code>
</th>
<td> 分析本地环境的标准日期和时间字符串格式，例如 <code>Sun Oct 17 04:41:13 2010</code> （本地环境依赖）
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>Ec</code>
</th>
<td> 分析本地环境的替用时期和时间字符串格式，例如期待在 ja_JP 本地环境中以 平成23年 取代 2011年
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>x</code>
</th>
<td> 分析本地环境的标准日期表示
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>Ex</code>
</th>
<td> 分析本地环境的替用日期表示，例如期待在 ja_JP 本地环境中以 平成23年 取代 2011年
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>X</code>
</th>
<td> 分析本地环境的标准时间表示
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>EX</code>
</th>
<td> 分析本地环境的替用时间表示
</td>
<td> 所有
</td></tr>
<tr>
<th> <code>D</code>
</th>
<td> 等价于 <b>"%m / %d / %y "</b>
</td>
<td> <code><b>tm_mon</b></code>, <code><b>tm_mday</b></code>, <code><b>tm_year</b></code>
</td></tr>
<tr>
<th> <code>r</code>
</th>
<td> 等价于本地环境的标准 12 小时时钟时间（ POSIX 中为 <b>"%I : %M : %S %p"</b> ）
</td>
<td> <code><b>tm_hour</b></code>, <code><b>tm_min</b></code>, <code><b>tm_sec</b></code>
</td></tr>
<tr>
<th> <code>R</code>
</th>
<td> 等价于 <b>"%H : %M"</b>
</td>
<td> <code><b>tm_hour</b></code>, <code><b>tm_min</b></code>
</td></tr>
<tr>
<th> <code>T</code>
</th>
<td> 等价于 <b>"%H : %M : %S"</b>
</td>
<td> <code><b>tm_hour</b></code>, <code><b>tm_min</b></code>, <code><b>tm_sec</b></code>
</td></tr>
<tr>
<th> <code>p</code>
</th>
<td> 分析 <b>a.m. 或 p.m.</b> 的本地环境等价版本
</td>
<td> <code><b>tm_hour</b></code>
</td></tr></table>
<p>注意：不写入 <code>tm_isdst</code> ，需要用如 <code>mktime</code> 的函数显式设置它。
</p><p><br>
</p>
</td></tr></table>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
<p>返回未指定类型的对象，使得若 <code>in</code> 为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../basic_istream.html"><span class="kw1713">std::<span class="me2">basic_istream</span></span></a><span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span></span></span> 类型输出流的名称，则表达式 <span class="t-c"><span class="mw-geshi cpp source-cpp">in <span class="sy1">&gt;&gt;</span> get_time<span class="br0">(</span>tmb, fmt<span class="br0">)</span></span></span> 表现为如同执行下列代码：
</p><p><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">typedef</span> <a href="../../iterator/istreambuf_iterator.html"><span class="kw669">std::<span class="me2">istreambuf_iterator</span></span></a><span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span> Iter<span class="sy4">;</span><br>
<span class="kw1">typedef</span> <a href="../../locale/time_get.html"><span class="kw1948">std::<span class="me2">time_get</span></span></a><span class="sy1">&lt;</span>CharT, Iter<span class="sy1">&gt;</span> TimeGet<span class="sy4">;</span><br>
<a href="../ios_base/iostate.html"><span class="kw1697">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a> err <span class="sy1">=</span> <a href="../ios_base/iostate.html"><span class="kw1698">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">goodbit</span></span></a><span class="sy4">;</span><br>
<span class="kw4">const</span> TimeGet<span class="sy3">&amp;</span> tg <span class="sy1">=</span> <a href="../../locale/use_facet.html"><span class="kw1896">std::<span class="me2">use_facet</span></span></a><span class="sy1">&lt;</span>TimeGet<span class="sy1">&gt;</span><span class="br0">(</span>in.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span><br>
tg.<span class="me1">get</span><span class="br0">(</span>Iter<span class="br0">(</span>in.<span class="me1">rdbuf</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>, Iter<span class="br0">(</span><span class="br0">)</span>, in, err, tmb, fmt, fmt <span class="sy2">+</span> traits<span class="sy4">::</span><span class="me2">length</span><span class="br0">(</span>fmt<span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span><br>
<span class="kw1">if</span> <span class="br0">(</span>err <span class="sy3">!</span><span class="sy1">=</span> <a href="../ios_base/iostate.html"><span class="kw1698">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">goodbit</span></span></a><span class="br0">)</span><br>
    in.<span class="me1">setstate</span><span class="br0">(</span>err<span class="br0">)</span><span class="sy4">;</span></span></span>
</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
<p>如 <span class="t-lc"><a href="../../locale/time_get/get.html" title="cpp/locale/time get/get">std::time_get::do_get</a></span> 中所指定，此函数是否清零出现于 <span class="t-c"><span class="mw-geshi cpp source-cpp">fmt</span></span> 中的格式指定符所不直接选择的 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>tmb</span></span> 中的域，是未指定的：可移植程序应该在调用 <code>std::get_time</code> 前初始化 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>tmb</span></span> 的每个域。
</p>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">运行此代码</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;sstream&gt;</span>
<span class="co2">#include &lt;locale&gt;</span>
<span class="co2">#include &lt;iomanip&gt;</span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
    <a href="../../chrono/c/tm.html"><span class="kw1023">std::<span class="me2">tm</span></span></a> t <span class="sy1">=</span> <span class="br0">{</span><span class="br0">}</span><span class="sy4">;</span>
    <a href="../basic_istringstream.html"><span class="kw1735">std::<span class="me2">istringstream</span></span></a> ss<span class="br0">(</span><span class="st0">"2011-Februar-18 23:12:34"</span><span class="br0">)</span><span class="sy4">;</span>
    ss.<span class="me1">imbue</span><span class="br0">(</span><a href="../../locale/locale.html"><span class="kw1893">std::<span class="me2">locale</span></span></a><span class="br0">(</span><span class="st0">"de_DE.utf-8"</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
    ss <span class="sy1">&gt;&gt;</span> std<span class="sy4">::</span><span class="me2">get_time</span><span class="br0">(</span><span class="sy3">&amp;</span>t, <span class="st0">"%Y-%b-%d %H:%M:%S"</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">if</span> <span class="br0">(</span>ss.<span class="me1">fail</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="br0">{</span>
        <a href="../cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">"Parse failed<span class="es1">\n</span>"</span><span class="sy4">;</span>
    <span class="br0">}</span> <span class="kw1">else</span> <span class="br0">{</span>
        <a href="../cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <a href="put_time.html"><span class="kw1800">std::<span class="me2">put_time</span></span></a><span class="br0">(</span><span class="sy3">&amp;</span>t, <span class="st0">"%c"</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
    <span class="br0">}</span>
<span class="br0">}</span></pre></div></div>
<p>可能的输出：
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">Sun Feb 18 23:12:34 2011</pre></div></div> 
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../../locale/time_get.html" title="cpp/locale/time get"> <span class="t-lines"><span>time_get</span></span></a></div></div>
</td>
<td>  从输入字符序列中解析时间/日期值到 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../../chrono/c/tm.html"><span class="kw1023">std::<span class="me2">tm</span></span></a></span></span> 中 <br> <span class="t-mark">(类模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="put_time.html" title="cpp/io/manip/put time"> <span class="t-lines"><span>put_time</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>  按照指定格式格式化并输出日期/时间值 <br> <span class="t-mark">(函数模板)</span> </td></tr>
</table>

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